Can you keep Cardinal Tetra and Corydoras Catfish together?
Algorithmically generated environmental and behavioral compatibility report.
Algorithmic Assessment
Water acidity (pH) parameters clash. Corydoras Catfish prefers a pH of 6.5-7.5, while Cardinal Tetra requires a pH of 4.6-6.2. There is no overlapping safe pH range.
Scientific Parameter Comparison
Cross-reference water chemistry, temperature range envelopes, and physical dimensions of Cardinal Tetra and Corydoras Catfish.
| Parameter Metric | Cardinal Tetra | Corydoras Catfish | Calculated Overlap |
|---|---|---|---|
| Temperature Range | 73°F – 81°F | 72°F – 78°F | 73°F – 78°F |
| pH Chemistry | 4.6 – 6.2 | 6.5 – 7.5 | No Overlap (Mismatch: 0.3) |
| Min. Tank Capacity | 10 Gallons | 10 Gallons | 10 Gallons (Minimum) |
| Aquatic Strata Zone | mid | bottom | Separated Layers |
| Adult Size (Max) | 2.0" (5 cm) | 2.5" (6 cm) | Ratio: 1 : 1.3 |
⚠ Physiological Mismatch Report
Our stocking engine calculations indicate that putting these two species in the same tank causes acute physiological strain. Below are the calculated parameters that violate safe cohabitation ranges:
Cardinal Tetra thrives in pH 4.6-6.2, while Corydoras Catfish needs pH 6.5-7.5.
⚔️ Do Cardinal Tetra and Corydoras Catfish Fight?
Environmental or structural requirements between these species clash too heavily to allow cohabitation. Water acidity (pH) parameters clash. Corydoras Catfish prefers a pH of 6.5-7.5, while Cardinal Tetra requires a pH of 4.6-6.2. There is no overlapping safe pH range.
🍽️ Swimming Layers & Feeding Competition
To satisfy their dietary requirements, offer a varied feeding schedule. Sinking pellets or wafers are ideal for bottom dwellers, while floating flakes or micro-granules support mid and top dwellers. The Cardinal Tetra occupies the mid layer, while the Corydoras Catfish occupies the bottom layer. This separation of swimming zones naturally minimizes direct interactions and reduces competition during feeding times.
📏 Size Difference & Predation Threat
Both species are closely matched in physical dimensions, with Cardinal Tetra growing to 2.0 inches and Corydoras Catfish reaching 2.5 inches. This size balance ensures neither species holds a physical dominance advantage.
🛠️ Plan Your Aquarium Setup
Planning a tank for Cardinal Tetra and Corydoras Catfish? Ensure your hardware and layout support their physical and water parameter needs:
Safe Tankmate Alternatives for Cardinal Tetra
Since the pairing between Cardinal Tetra and Corydoras Catfish is flagged as incompatible, here are 3 peaceful community tankmates that share a flawless compatibility profile with Cardinal Tetra and match similar water parameters:
Chemistry & Habitat Analysis
Frequently Asked Questions: Cardinal Tetra & Corydoras Catfish Compatibility
Are Cardinal Tetra and Corydoras Catfish good tank mates?
Water acidity (pH) parameters clash. Corydoras Catfish prefers a pH of 6.5-7.5, while Cardinal Tetra requires a pH of 4.6-6.2. There is no overlapping safe pH range.
Can you put Cardinal Tetra and Corydoras Catfish in the same tank together?
Environmental or structural requirements between these species clash too heavily to allow cohabitation. Water acidity (pH) parameters clash. Corydoras Catfish prefers a pH of 6.5-7.5, while Cardinal Tetra requires a pH of 4.6-6.2. There is no overlapping safe pH range.
What water temperature and pH parameters do Cardinal Tetra and Corydoras Catfish need?
Both species require compatible parameters. Cardinal Tetra needs a temperature of 73°F to 81°F and a pH of 4.6 to 6.2. Meanwhile, Corydoras Catfish needs a temperature of 72°F to 78°F and a pH of 6.5 to 7.5. Shared overlap range: 73°F–78°F temperature and No safe pH overlap overlap.
What is the minimum combined tank volume required to house Cardinal Tetra and Corydoras Catfish?
To successfully house both species together, the minimum baseline capacity is 10 gallons. Because both Cardinal Tetra and Corydoras Catfish are peaceful community species, no extra territorial buffer volume is required.